The mask can be used when fighting Abyssal Demons to boost combat stats, damage inflicted and slayer experience earned. Whilst wearing this mask, you can ensure once per day that your next slayer assignment will be Abyssal Demons, and provides a free teleport twice per day to the Slayer Tower Abyssal Demons, Kuradal's dungeon or the Abyss; it also provides a free teleport twice per day to the Morytania Slayer Tower (near Markus), Morytania Slayer Tower (top floor), or the Abyss. It also acts as a face mask.

The experience, stat and damage boost will fade after a specified number of kills, leaving you instead with the helm of warping. The odds of receiving the abyssal head -unstuffed- are also doubled.

Notes:

This item can be reobtained from Diango's Toy Store in Draynor should you destroy it/lose it, with the same progress as before.